What is Open Space?

Westminster Open Space is a City-funded program established in 1985 to preserve natural land, enhance quality of life, and protect Westminster’s unique environmental character. Supported by a dedicated sales tax, it has conserved over 3,700 acres—15% of the city’s land—featuring trails, scenic views, wildlife corridors, and native ecosystems. The program integrates open space into urban development to ensure long-term environmental sustainability, passive recreation, and community well-being. 

Migratory Bird Walk Sunday October 5

Join us along the Walnut Creek Trail to discover the various species passing through. Sign up and register below!

Sunday, October 5
9 - 10 a.m.
West View Rec Center
(10747 West 108th Ave.)

Celebrate World Migratory Bird Day Saturday, October 11

Join Majestic View Nature Center, Standley Lake, and other local partners in celebrating World Migratory Bird Day! Learn about how important Bird-Friendly Cities are to birds during their journey and meet LIVE migratory raptors such as a juvenile Bald Eagle! Secure your spot by registering below. 

Saturday, October 11 
8 a.m. - 12 p.m.
Majestic View Nature Center
(7030 Garrison St.)

Our upcoming volunteer opportunities will dive into some of the most critical aspects of land restoration. At home, pulling weeds might feel like a simple step chore: remove, toss, and move on. In Open Space, however, the process is much more intentional. When large areas of invasive plants are removed, the job isn’t done. Replanting or seeding right after ensures those bare patches don’t get quickly taken over again by weeds.

Nature doesn’t like gaps, so if we don’t step in, invasives will. That’s why we focus on replanting with native plants (species adapted to our local soils, climate, and wildlife). These plants not only hold the ground we clear, but they also provide food and shelter for pollinators and support other wildlife. By joining us, you’ll be helping create a healthier, more resilient ecosystem right here in Westminster’s Open Space.

Westminster Open Space invites community members to participate in land management practices.

Every month, projects held on Saturdays educate, instruct, and involve hands-on restoration efforts. Supplies and tools are provided as well as comradery and support from people passionate about the outdoors and sustaining thriving ecosystems. Explore upcoming opportunities below. Events are for all ages.

Semper Farm & Allison Gardens Trail Maintenance

Saturday, September 27
8-10 a.m.
Semper Farm Open Space

Work with Westminster Open Space staff to maintain existing mulch and gravel trails at Semper Farm Open Space.

Mower Reservoir Planting 

Saturday, October 4
9-11 a.m. 

Work with Westminster Open Space staff to plant native woody vegetation at Mower Reservoir! We will plant trees, shrubs, and broadcast native seed in the wetland areas and along the trail margins. This site is near Westminster Hills Open Space.

Honor the Land and Streams

Monday, November 3 - Thursday, November 6 
Citywide

Imagine a more beautiful Westminster! Help clean up our waterways and open space to honor our land and streams. Spend the morning picking up trash on public land to keep waterways flowing clean.

Open Space Mission & Commitment, today and tomorrow

Mission: The Westminster Open Space Program strives to preserve and protect the city’s unique natural landscapes and foster an appreciation for the environment by continuing to enhance the community’s quality of life and connection to nature.

 Vision: The Westminster Open Space Program envisions a sustainable, diverse environment where thriving natural areas are supported by best land management practices, active community engagement, and opportunities for passive recreation, fostering a lasting connection to nature for future generations.